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| author | Wesley Cheng <quic_wcheng@quicinc.com> | 2022-03-15 18:13:58 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-18 12:58:46 +0100 |
| commit | 0066472de157439d58454f4a55786f1045ea5681 (patch) | |
| tree | e5adba36d25b6f4c7726a1a3a65422aa97a15381 /drivers/usb/dwc3/core.h | |
| parent | 5cd601e699f798dcf3017632f33c6bff4eeee2f8 (diff) | |
| download | linux-0066472de157439d58454f4a55786f1045ea5681.tar.gz | |
usb: dwc3: Issue core soft reset before enabling run/stop
It is recommended by the Synopsis databook to issue a DCTL.CSftReset when reconnecting from a device-initiated disconnect routine. This resolves issues with enumeration during fast composition switching cases, which result in an unknown device on the host. Reviewed-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com> Link: https://lore.kernel.org/r/20220316011358.3057-1-quic_wcheng@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/dwc3/core.h')
| -rw-r--r-- | drivers/usb/dwc3/core.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index e9b1e9b8f1f3..5c9d467195a6 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -1532,6 +1532,8 @@ bool dwc3_has_imod(struct dwc3 *dwc); int dwc3_event_buffers_setup(struct dwc3 *dwc); void dwc3_event_buffers_cleanup(struct dwc3 *dwc); +int dwc3_core_soft_reset(struct dwc3 *dwc); + #if IS_ENABLED(CONFIG_USB_DWC3_HOST) || IS_ENABLED(CONFIG_USB_DWC3_DUAL_ROLE) int dwc3_host_init(struct dwc3 *dwc); void dwc3_host_exit(struct dwc3 *dwc); |